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Crimson
@crimson
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Joined: Jan 16, 2024
Last seen: Dec 9, 2024
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Topics: 4 / Replies: 210
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RE: Grant 13kW Aerona3 - issues getting zones to temp

Thanks Ian, I’ll take pictures in morning in daylight. Looks it be goes in a duct under utility then outside with some pipe insulation over the pipes ...

2 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Grant 13kW Aerona3 - issues getting zones to temp

Thanks I’ll get some pipe insulation. just rechecked - 00 - 38, probe 35. 09 - 45, probe 39.3. if plumber comes tomorrow and replaces LLH I’ll...

2 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Grant 13kW Aerona3 - issues getting zones to temp

@allyfish thanks for this. could you explain the figures in the calculation here: (9/60) x 4.2 x (45-38) are those from the panel results? (...

2 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Grant 13kW Aerona3 - issues getting zones to temp

here are th me results of the codes, and another photo of the probes by LLH for context (it’s heating at this point not hot water cycle) 00 - 38c ...

2 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Grant 13kW Aerona3 - issues getting zones to temp

I can ask them to check this Friday/Monday - or is that something I could look at?

2 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Grant 13kW Aerona3 - issues getting zones to temp

Thanks @allyfish, will get back here tonight with results from the codes. Plumber did try I believe 3 speeds on the pump. To no avail, I couldn’t see ...

2 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Grant 13kW Aerona3 - issues getting zones to temp

@iancalderbank thanks very much for this. this is the 5-6pm cycle which I’ve been considering just dropping completely leaving us with just two cycl...

2 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Grant 13kW Aerona3 - issues getting zones to temp

Yeah I think plumber's blinkers are on. I'm glad finally some movement into giving what you're saying a try though. If he's here Friday (suspect Mon...

2 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Grant 13kW Aerona3 - issues getting zones to temp

Thanks @iancalderbank - I'll pass this on.I've not seen them / or have them mention the primary flow rate (they seem to just do whatever Grant sugges...

2 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Grant 13kW Aerona3 - issues getting zones to temp

Forgot to add - the pipework is setup so they can easily isolate before the LLH. I asked how long would it take to replace that and he said not long....

2 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Grant 13kW Aerona3 - issues getting zones to temp

Thanks @iancalderbank - I'll keep pressing them. They seem very much blind to it being a problem. I'll press them to swap to another one, and repo...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Grant 13kW Aerona3 - issues getting zones to temp

Plumber has suggested they look at the LLH itself to rule that out before looking elsewhere. Basically a bit of trial and error. Running pump at di...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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